在提问之前，我已经在 Google 上搜索了好几天，我觉得我已经尝试了所有方法，但 ntp 仍然没有自动更新系统时间。我已经让它运行了好几天，但仍然得到以下输出：
[root@server1 etc]# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
ntp1.flashdance .INIT. 16 u - 64 0 0.000 0.000 0.000
ntp.jine.se .INIT. 16 u - 64 0 0.000 0.000 0.000
ntp2.flashdance .INIT. 16 u - 64 0 0.000 0.000 0.000
timehost.lysato .INIT. 16 u - 64 0 0.000 0.000 0.000
[root@server1 etc]# ntpdate -d 0.se.pool.ntp.org
24 May 21:24:58 ntpdate[62896]: ntpdate [email protected] Sat Nov 23 18:21:48 UTC 2013 (1)
Looking for host 0.se.pool.ntp.org and service ntp
host found : timehost.lysator.liu.se
transmit(130.236.254.17)
receive(130.236.254.17)
transmit(130.236.254.17)
receive(130.236.254.17)
transmit(130.236.254.17)
receive(130.236.254.17)
24 May 21:24:58 ntpdate[62896]: 130.236.254.17 rate limit response from server.
transmit(193.228.143.12)
receive(193.228.143.12)
transmit(193.228.143.12)
receive(193.228.143.12)
transmit(193.228.143.12)
receive(193.228.143.12)
transmit(193.228.143.12)
receive(193.228.143.12)
transmit(79.136.84.63)
receive(79.136.84.63)
transmit(79.136.84.63)
receive(79.136.84.63)
transmit(79.136.84.63)
receive(79.136.84.63)
transmit(79.136.84.63)
receive(79.136.84.63)
transmit(46.22.115.26)
receive(46.22.115.26)
transmit(46.22.115.26)
receive(46.22.115.26)
transmit(46.22.115.26)
receive(46.22.115.26)
transmit(46.22.115.26)
receive(46.22.115.26)
server 130.236.254.17, port 123
stratum 1, precision -20, leap 00, trust 000
refid [GPS], delay 0.02982, dispersion 24.00003
transmitted 3, in filter 2
reference time: d72b6e22.09959634 Sat, May 24 2014 21:14:42.037
originate timestamp: d72b6e40.b3585db2 Sat, May 24 2014 21:15:12.700
transmit timestamp: d72b708a.e7533f64 Sat, May 24 2014 21:24:58.903
filter delay: 0.02994 0.02982 0.00000 0.00000
0.00000 0.00000 0.00000 0.00000
filter offset: -586.200 -586.200 0.000000 0.000000
0.000000 0.000000 0.000000 0.000000
delay 0.02982, dispersion 24.00003
offset -586.200926
server 193.228.143.12, port 123
stratum 2, precision -23, leap 00, trust 000
refid [193.228.143.12], delay 0.03706, dispersion 0.00000
transmitted 4, in filter 4
reference time: d72b6d43.23c9c958 Sat, May 24 2014 21:10:59.139
originate timestamp: d72b6e40.f07db8a7 Sat, May 24 2014 21:15:12.939
transmit timestamp: d72b708b.211ebd04 Sat, May 24 2014 21:24:59.129
filter delay: 0.03706 0.03716 0.03712 0.03714
0.00000 0.00000 0.00000 0.00000
filter offset: -586.195 -586.195 -586.195 -586.195
0.000000 0.000000 0.000000 0.000000
delay 0.03706, dispersion 0.00000
offset -586.195733
server 79.136.84.63, port 123
stratum 2, precision -21, leap 00, trust 000
refid [79.136.84.63], delay 0.04167, dispersion 0.00032
transmitted 4, in filter 4
reference time: d72b6dfa.d84c236b Sat, May 24 2014 21:14:02.844
originate timestamp: d72b6e41.271b1a96 Sat, May 24 2014 21:15:13.152
transmit timestamp: d72b708b.582552e4 Sat, May 24 2014 21:24:59.344
filter delay: 0.04289 0.04172 0.04167 0.04463
0.00000 0.00000 0.00000 0.00000
filter offset: -586.200 -586.199 -586.199 -586.201
0.000000 0.000000 0.000000 0.000000
delay 0.04167, dispersion 0.00032
offset -586.199643
server 46.22.115.26, port 123
stratum 3, precision -20, leap 00, trust 000
refid [46.22.115.26], delay 0.02687, dispersion 0.00003
transmitted 4, in filter 4
reference time: d72b6781.8ac88413 Sat, May 24 2014 20:46:25.542
originate timestamp: d72b6e41.4c57134a Sat, May 24 2014 21:15:13.298
transmit timestamp: d72b708b.7fc9d467 Sat, May 24 2014 21:24:59.499
filter delay: 0.02699 0.02696 0.02687 0.02701
0.00000 0.00000 0.00000 0.00000
filter offset: -586.201 -586.201 -586.201 -586.201
0.000000 0.000000 0.000000 0.000000
delay 0.02687, dispersion 0.00003
offset -586.201891
24 May 21:24:59 ntpdate[62896]: step time server 130.236.254.17 offset -586.200926 sec
不过我可以像这样手动强制更新
[root@server1 etc]# ntpdate -uq se.pool.ntp.org
server 193.228.143.13, stratum 2, offset 0.006334, delay 0.04576
server 193.228.143.12, stratum 2, offset 0.005765, delay 0.03703
server 130.236.254.17, stratum 1, offset 0.000529, delay 0.02977
server 89.160.71.4, stratum 1, offset 0.000366, delay 0.02917
24 May 21:33:37 ntpdate[64428]: adjust time server 89.160.71.4 offset 0.000366 sec
对于可能存在什么问题您有什么想法吗？
谢谢！
更新
我的 ntp.conf
# For more information about this file, see the man pages
# ntp.conf(5), ntp_acc(5), ntp_auth(5), ntp_clock(5), ntp_misc(5), ntp_mon(5).
driftfile /var/lib/ntp/drift
# Permit time synchronization with our time source, but do not
# permit the source to query or modify the service on this system.
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery
# Permit all access over the loopback interface. This could
# be tightened as well, but to do so would effect some of
# the administrative functions.
restrict 127.0.0.1
restrict -6 ::1
# Hosts on local network are less restricted.
#restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
server 0.se.pool.ntp.org iburst
server 1.se.pool.ntp.org iburst
server 2.se.pool.ntp.org iburst
server 3.se.pool.ntp.org iburst
#broadcast 192.168.1.255 autokey # broadcast server
#broadcastclient # broadcast client
#broadcast 224.0.1.1 autokey # multicast server
#multicastclient 224.0.1.1 # multicast client
#manycastserver 239.255.254.254 # manycast server
#manycastclient 239.255.254.254 autokey # manycast client
# Enable public key cryptography.
#crypto
includefile /etc/ntp/crypto/pw
# Key file containing the keys and key identifiers used when operating
# with symmetric key cryptography.
keys /etc/ntp/keys
# Specify the key identifiers which are trusted.
#trustedkey 4 8 42
# Specify the key identifier to use with the ntpdc utility.
#requestkey 8
# Specify the key identifier to use with the ntpq utility.
#controlkey 8
# Enable writing of statistics records.
#statistics clockstats cryptostats loopstats peerstats